diff --git a/internal/hls/muxer_ts_writer.go b/internal/hls/muxer_ts_writer.go
index cef89b9a..23a4d571 100644
--- a/internal/hls/muxer_ts_writer.go
+++ b/internal/hls/muxer_ts_writer.go
@@ -13,8 +13,8 @@ type muxerTSWriter struct {
 }
 
 func newMuxerTSWriter(
-	videoTrack gortsplib.Track,
-	audioTrack gortsplib.Track) *muxerTSWriter {
+	videoTrack *gortsplib.TrackH264,
+	audioTrack *gortsplib.TrackAAC) *muxerTSWriter {
 	w := &muxerTSWriter{}
 
 	w.innerMuxer = astits.NewMuxer(context.Background(), w)